JPH03105206U

JPH03105206U -

Info

Publication number: JPH03105206U
Application number: JP1338890U
Authority: JP
Priority date: 1990-02-14
Filing date: 1990-02-14
Publication date: 1991-10-31

Description

[Brief explanation of drawings]

第１図は電子制御式作業機昇降装置付きのトラ
クタに、ロータリ耕耘装置を付設した状態の側面
図、第２図はコントローラＣと、その上面に付設
したリフト昇降スイツチ１と、耕深設定ダイヤル
２と、ポジシヨンセレクトスイツチ３の平面図、
第３図はリフトアーム７の回動基部に付設したリ
フト角センサ４の後面図、第４図はポジシヨンレ
バー８に付設したポジシヨンレバーセンサ５の側
面図、第５図は同じく後面図、第６図はロータリ
耕耘装置のリアカバー９の基部に設置したリアカ
バーセンサ６の側面図、第７図は同じく後面図、
第８図はコントローラＣを中心とした電気回路図
、第９図は制御ブロツク線図、第１０図は油圧制
御回路図、第１１図は本考案の電子制御式作業機
昇降装置の制御フローチヤート図、第１２図はバ
ツテリ電圧ｖ１，ｖ２により、下降側電磁弁Ｖｄ
と上昇側電磁弁Ｖｕのコイル２２のコイル押し力
ｐ１，ｐ２を変更するマツプを示す図面、第１３
図は第１２図のマツプによりコイル押し力ｐ１，
ｐ２を変更した場合の電磁弁流量ｑ１，ｑ２の変
化を示す図面、第１４図は電磁弁にデイザ電圧を
掛ける為の従来の回路を示す図面、第１５図は本
構成のデイザ電圧を掛ける回路の示す図面、第１
６図はマイコン１５側から発信されるパルス信号
を示す図面、第１７図・第１８図・第１９図はデ
ユーテイ比と電磁弁に掛＋る電流値の関係を示す
図面である。１……リフト昇降スイツチ、２……耕深設定ダ
イヤル、３……ポジシヨンセレクトスイツチ、４
……リフト角センサ、５……ポジシヨンレバーセ
ンサ、６……リアカバーセンサ、７……リフトア
ーム、８……ポジシヨンレバー、９……リアカバ
ー。 Figure 1 is a side view of a rotary tiller attached to a tractor equipped with an electronically controlled work equipment lift, and Figure 2 is a controller C, lift lift switch 1 attached to its top, and tillage depth setting dial. 2 and a plan view of the position select switch 3,
3 is a rear view of the lift angle sensor 4 attached to the rotation base of the lift arm 7, FIG. 4 is a side view of the position lever sensor 5 attached to the position lever 8, and FIG. 5 is a rear view of the same. FIG. 6 is a side view of the rear cover sensor 6 installed at the base of the rear cover 9 of the rotary tillage device, and FIG. 7 is a rear view as well.
Fig. 8 is an electric circuit diagram centered on controller C, Fig. 9 is a control block diagram, Fig. 10 is a hydraulic control circuit diagram, and Fig. 11 is a control flowchart of the electronically controlled working machine lifting device of the present invention. 12 shows the lowering side solenoid valve Vd due to the battery voltages v1 and v2.
13th drawing showing a map for changing the coil pushing forces p1 and p2 of the coil 22 of the rising side solenoid valve Vu.
The figure shows the coil pushing force p1,
A drawing showing changes in the solenoid valve flow rates q1 and q2 when p2 is changed, Fig. 14 is a drawing showing a conventional circuit for applying a dither voltage to a solenoid valve, and Fig. 15 is a circuit for applying a dither voltage of this configuration. Drawing shown by, 1st
FIG. 6 is a diagram showing a pulse signal transmitted from the microcomputer 15 side, and FIGS. 17, 18, and 19 are diagrams showing the relationship between the duty ratio and the current value applied to the electromagnetic valve. 1... Lift elevation switch, 2... Cultivation depth setting dial, 3... Position select switch, 4
... Lift angle sensor, 5 ... Position lever sensor, 6 ... Rear cover sensor, 7 ... Lift arm, 8 ... Position lever, 9 ... Rear cover.

Claims

[Scope of utility model registration request]

In a configuration in which a work machine attached to a tractor is raised and lowered by an electronically controlled work machine lifting device and the plowing depth of the work machine is controlled to an optimal position, the voltage of a battery that drives the electronic control mechanism is detected, and the battery voltage is An electronically controlled working machine elevating device characterized by comprising a map for correcting voltage values applied to a descending side solenoid valve Vd and an ascending side solenoid valve Vu, and changing the voltage values according to the change.